AUTHOR=Benítez-Burraco Antonio , Moran Steven TITLE=Editorial: The Adaptive Value of Languages: Non-linguistic Causes of Language Diversity JOURNAL=Frontiers in Psychology VOLUME=9 YEAR=2018 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2018.01827 DOI=10.3389/fpsyg.2018.01827 ISSN=1664-1078